Shoe upper



FIG. 1 is a front perspective view of a shoe upper illustrating our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a front elevation view thereof; and,

FIG. 6 is a rear elevation view thereof.

The broken line showing of a shoe sole in the FIGURES in environmental only and does not form part of the claimed design. 

The ornamental design for a shoe upper, as shown. 